[Hibernate]Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
阿新 • • 發佈:2019-01-07
使用Hibernate官方文件上的以下程式碼進行測試時報出這個異常。
org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
package org.hibernate.tutorial.util; import org.hibernate.SessionFactory; import org.hibernate.boot.registry.StandardServiceRegistryBuilder; import org.hibernate.cfg.Configuration; public class HibernateUtil { private static final SessionFactory sessionFactory = buildSessionFactory(); private static SessionFactory buildSessionFactory() { try { // Create the SessionFactory from hibernate.cfg.xml new Configuration().configure().buildSessionFactory( new StandardServiceRegistryBuilder().build() ); } catch (Throwable ex) { // Make sure you log the exception, as it might be swallowed System.err.println("Initial SessionFactory creation failed." + ex); throw new ExceptionInInitializerError(ex); } } public static SessionFactory getSessionFactory() { return sessionFactory; } }
後來修改成舊版本的如下程式碼異常消失:
Configuration cfg = new Configuration();
SessionFactory sf = cfg.configure().buildSessionFactory();
Session session = sf.openSession();
但是無參的buildSessionFactory方法在新版本中已經不推薦使用了,最後找到了解決辦法:
親測不會再出現這個異常了。Configuration cfg = new Configuration().configure(); sessionFactory = cfg.buildSessionFactory(new StandardServiceRegistryBuilder().applySettings(cfg.getProperties()).build());